.comment{
    width: 300px;
    height: 500px;
    border: 1px solid #ccc;
    padding: 5px;
}

.comment .header input{
    width: 285px;
    border: 0;
    border: 1px solid #ccc;
}
.comment .content{
    margin: 5px 0;
}
.comment .content textarea{
    width: 285px;
    border: 0;
    border: 1px solid #ccc;
}